Attachment for carburetors



Patented Dec. '16, 1924.,

UNITED STATES WILLIAM W. FARNSWORTH, OF CHICAGO, ILLINOIS.

ATTACHMENT FOB CARBURETORS.

Application filed February 13, 1922. Serial No. !536,201.

ment adapted 'to be disposed between the carburetor and the manifold of an engine and through which attachment the charge from the carb-uretor passes, the fuel on its passage therethrough being broken up or disintegrated thereby insuring a complete vaporization, Consumption and explosion of the gases in the cylinder.

A further obj ect of the invention is to provide an improved device of this character,

which will be simple, durable, cheap andcompact in Construction, effective and eflicient in operation, and which may be readily applied to any carburetor.

To the attainment of these ends and the accomplishment of other new and useful objects as-will appean the invention consists in the features of novelty in substantially the construction, combination and arrangement of the several parts hereinafter more fully described and claimed and shown in the accompanying drawing, illustrating this invention and in which- Figur-e 1 is a sectional view of the attachment showing the same in position and with the carburetor and a portion of the manifold of the engine shown in elevation.

Figure 2 is a sectional View taken on line 2-2, Figure 1.

Figure 3 is a view similar to Figure 2 of a modified form of the invention.

Referring more particularly to the drawing the numeral 10 designates generally a carburetor of any suitable Construction and which is provided with the usual outlet 11, arranged in alinement with the inlet 12 of the usual engine manifold '13. Interposed between the carburetor and the engine manifold is a casing 14, which is of a considerable length, having an inlet 15 and a discharge outlet 16. The inlet 15 registers with the outlet 11 ot the carburetor 10, while the outlet 16 registers with the inlet 12 of the manitold 13, and the attachment is secured in position in any desired or suitable manner. VVithin the casing 14 is a partition 17, which is spaced 'rom the walls of the casing and extends across the inlet 15 and the outlet 16 of the casing. This partition 17 extends lengthwise of the casing to a point in proximity to but spaced from the end 18 of the casing as at 19, and is then bent back upon itself as at 20 to terminate at a point adjacent the outlet 16 thereby dividing the interior of the casing into passages 21 and 22, the passage 21 having communication with the inlet 15 of the casing and gradually decreasing in width throughout the length. thereof around the partition 17 to a point adjacent the outlet 16. The passage 22 has direct communication with the outlet 16 so that when the engine is Operating the suction created ther-eby will be manifested in the passage 22.

The partitions 17-20 abut the wall 23 of the casing and extend toward but terminate short of the opposite wall 24 of the casing so as to form a passage 25 intermediate the edge of the portion 17 of the partition and the wall 24: of the casing, establishing communication between the passage 21 and the passage 22, and the portion 20 of the partition also terminates short of tlre wall 24 of the casing to form a passage 26, which establishes communication between the passage 21 and the passage 22. "With this construction it will be apparent that the suction created in the manifold 13 will be manifested in the passage 22 and as the passage 22 has communication with the passage 21 throughout the entire length of the latter passage, and this passage 21 having communication through the opening 15 with the oarburetor 10, the suction which is manifested in the passage 22 will also be manifested in the passage 21, through the passages 25 and 26, thereby entraining or drawing in the fuel from the carburetor into the opening 15, and from the passage 21 into the passage 22, out of the outlet 16 and into the manifold 13, through the opening 12,

The combined area ot the passages forming communication between the passages 21 and 22 s preferably substantially equal to the area of the inlet 15, so that the fuel which is drawn in from the carburetor will be distributed throughout the length of the passage 21. As the size of this passage is arranged so as to preferably decrease throughout its length the suction in the passage 22 will cause the uel in the passage 21 to flow through the passages 25-26, into the passage 22 and the direction of flow of the fuel from the passage 21 into the passage 22 will, by reason of the arrangement of the partition 17 cause the fuel to flow in counter or opposed currents into the passage 22, so that they will abut or clash and this clashing of the currents will break up or dsintegrate the uel, the flow of the gas Currents resulting from the abutting currents being in a direction at an angle to the flow of the currents at the point of contact, thereby atomizing or sprayng the fuel into the passage 22, to be directed out of the outlet 16 into the engine mani'fold. The clashing or abutting of the opposed fuel currents and the action of the engine suction thereon will result in the tuel as it flows through the passageways being subjected to pneumatic vibration to break up the .fuel.

If desired and as an additional means for assisting in the breaking up of the particles of fuel, mechanical vibrators 27 may be provided soas to project across the inlet to the passage 22, and these vibrators 27 are preferably constructed of any suitable resilient material, which will be sensitive in its action to the suction created in the passage 22, as well as the flow of thetuel.

In the event that these mechanical agitators or vibrators are employed the wall 28 of the casing 23 is preferably constructed so as to be removed, so that access may be had to' the vibr-ators and in that event the wall 28 may be arranged in any desired or suitable manner.

lVhile thepreferred forms of the invention have been herein shown and described, it is to be understood that various changes may be made in the details of construction and in the combination and arrangement of the several parts, within the scope of the claims, without departing from the spirit of this invention.

What is claimed as new is 1. In combination, a carburetor, an engine cylinder, a casing interposed between the carburetor and cylinder and having an inletin communication with the carburetor and an outlet in communication with the engine intake, means in the casing dividng the casing into passages, one of which passages partially encompasses the other, said passages having communication with each other along one edge of the said means, one of said passages having con'munication with the said inlet, and another of the passages having communication with the said outlet whereby suction will be created in one of the passages to draw the fuel into the said passage from the other passage and will cause the fuel currents to clash in one of said passages as they pass around the said means.

2. In combnation, a carburetor, an engine Cyli'nder a casing interposed "between the carburetor and cylinder and having an inlet in communication with the carburetor and an outlet in communication with the engine intake, a partition in the casing dividing the casing into passages having communication with each other along` one edge of the partition, one of said passages having communicationwth the said inlet, and 'another of the passages having communication with the said outlet whereby suction will be created in one of the passages to cause the 'uel to flow in clashing countercurrents thereinto and from the other passage as they pass around the said partition.

3. In combinationa carburetor, an engine cylinder intake, an extended casing inter posed between the carburetor and the said intake, said casing having an inlet and .an outlet adjacent one end and in proximity to each other, the said inlet having communication with the carb-uretor and the said outlet having communication with the said intake, and a partition in the casing and extendng from one wall of the casing and terminating short of the opposite wall thereo-fto divide the casing into passages communicating with each other only at the end of the partition one of the passages having communication with the intake of the casing and the other with the outlet of said casing, said partition causing the gases to flow in counter-currents in the casing and to clash as they pass around the end of the partition.

4. In combination a carburetor, an engine cylincler intake, an extended casing interposed between the earburetor and the said intake, said casing having an inlet and an outlet adjacent one end and in proximity to each other, the said inlet having communication with the carburetor and the said outlet having communication with the said intake, a partition in the casing and eXtending 'from one wall'of the casing and terminating short of the opposite wall thereof to div'de the casing into passages communicating with each other only at the end of the partition, one of the passages having communication with the intake of the casin g and the other with the outlet of said casing, said partition causing the gases to flow in counter-currents in the casing and to clash as they pass around the end of the partition, and a me chanical vibrator disposed within the casing and adjacent the said end of the partition.

5. In combination a carburetor, 'an-engine cylinder intake, an extended casing interposed between the carburetor and the said intake, said casing having an inlet and an outlet adjacent one end and in proxinty to' each other, the said inlet having communication with the carburetor and the said outlet having communication with the said intake, a partition in the casing and extending from one wall of the casing and terminating sho-rt of the opposite wallthereof to divile the sis" casing into passages connuncatng With each other only at the` end of the partton, one of the passages having communication With the ntake of the casng and the other With the outlet of said casng said pa'tton causing the gases to flow in counter-Currents in the casng and to clash as they pass around the end of the partton and a meehancal yh'ato' clsposed within the casng and atljacent the said encl of the partton, said vhrato being controlled in its action by the engine sucton.

In testnony whe'eof I have signed ny name to this specfioaton, on this 10th day of February, A. D. 1922.

VVILLIAM W. FABNSWVORTH. 

